Right Triangle CSS

<!DOCTYPE html>
<html>

<head>

     <style>

   .right-triangle {
             border-top: 100px solid transparent;
             border-bottom: 100px solid transparent;
             border-right: 172px solid green;
             width: 0;
}

     </style>

</head>
 <body>
   
<div class="right-triangle"></div>

 </body>

</html>